python pickle 序列化类

Posted 2020-08-09

python pickle 序列化类

# coding:utf-8
try:
    import cPickle as pickle
except ImportError:
    import pickle


class PickleVar(object):
    __doc__ = ‘‘‘序列化操作类‘‘‘

    def __init__(self):
        print (‘------------------------------------------------------‘)

    def dump(self, data, fileName):
        with  open(fileName, "wb") as f:
            pickle.dump(data, f)

    def load(self, fileName):
        with open(fileName, ‘rb‘) as f:
            return pickle.load(f)

    def __del__(self):
        print (‘------------------------------------------------------‘)


if __name__ == ‘__main__‘:
    # 生成随机数
    data = range(10)

    # print pickle.dumps(data)
    # print pickle.loads(pickle.dumps(data))
    ‘‘‘注意：dump和dumps是有区别的，dump是保存到文件，而dumps只是生成序列化后的字符串‘‘‘

    p = PickleVar()
    # 存入变量data
    p.dump(data, ‘file‘)
    print p.load(‘file‘)